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(No Model.) 2 SheetsSheet 1. A. M. BURNHAM.

MOP WRINGER.

Patented Mar. 27, 1888.

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(No Model.) 2 sheetssheew. A. M. BURNHA M.

MOP WRINGBR.

Patented Mark 27, 1888.

lUNrTED STATES FFTEEQ PATENT ARTHUR M. BURNHAM, OF GARDINER, MAINE, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE EXOELSIOR WRINGER COMPANY, OF SAME PLACE.

MOP-WRINGER.

SPECIFICATION forming part of Letters Patent No. 380,275, dated March 2'7, 1888. Application filed March 13, 1886. Renewed December 6, 1587. Serial No. 57,143. (No model.)

details of construction of an apparatus for 4o jects over and beyond the frame.

wringing mops, which will be first described with reference to the accompanying drawings, and specifically pointed out in the claims.

Figure I is a side elevation of my improvement. Fig. 11 is a detail perspective view of one of the guards employed for guiding the mop on the wringer. Fig. III is a bottom view of the frame, showing U-shaped treadle; and Fig. IV, a detail elevation of the catch for retaining thetreadle. Fig. V is a side elevation of the apparatus folded for transportation.

1 represents a base-frame having lugs 2 at each corner, through which lugs are passed rockshafts 3.. Paired bell-crank levers 4 5 are fixed to the ends of the shafts 3. The baseframe may be made narrower at one end than the other, so that in folding for transportation the bell-crank levers 4 may pass between the levers 5, thus rendering the apparatus more compact.

Fig. Vshows the apparatus folded for transportation.

The base-frame 1 is provided with sharpened lugs 6, which, in connection with the set-screw 7 in lugs 8, serve to clamp the tank or bucket 9 firmly in the wringer. At one side of the baseframe the lugs 2 are made of greater length than at the other and have journaled at their upper ends a U shaped treadle, 11, which pro- Under the foot-plate 12 of the treadle is arranged an extension, 13, of the base-frame, which serves to prevent the tipping up of the apparatus when a mop is being drawn up through the wringer. Platesprings 14, riveted to the base-frame at one end and bearing under the treadle at their other end, return said treadle to its upper position. The shorter horizontal arms of the bell-crank levers 4 5 are forked and surround lugs 15, one on the middle of each member of the U-shaped treadle. Vertical movement of the treadles in both directionsis thus transmitted positively to the bell-crank levers, and thus serves to approach or retract the wringerrollers 16, supported on the upper ends of said levers.

17 is a link pivoted to the base-frame 1 and having ashoulder, 18. Either the said shoulder 18 or the upper end of the link 17 may engage a stud, 19, projecting inwardly from one member of the treadle. If the link be arranged to arrest said stud by contact with its shoulder 18, the treadle is arrested in its upward movement and its lug cannot become disengaged from the forks of the bellcrank levers 4 5; but if the link be shifted so that the said stud is allowed to pass the shoulder 18 the forks of the bell-crank levers 4 5 are released from the studs 19 and said levers may be folded back under the base-frame, thus reducing the apparatus to compact form for transportation, or they may be folded back sufficiently far to enable the removal of the tank or bucket.

The wringer rollers 16 are preferably of wood, and to prevent the destruction of the wood byhot or soda water I'prefer to boil them in oil and afterward bake them.

Fixed to the upper end of each bell-crank lever 5 is a guard, 20, of spring-wire. The guards extend outwardly for a short distance, so as as to fall beneath the roller of the bellcrank levers 4 when the rollers are brought together. They are then bent inwardly and at their inner ends approximately conform to the shape of the roller for a short distance, so as to guide the mop between the rollers and insure the equal wringing of the whole mop. The guards being of spring-wire, adjust themthemselves to mops of various widths.

The tank or bucket 9is provided with a bail, 21, which is allowed to assume an upright position and yet be retained from falling in the way of the wringer by means of a wire stop or bracket, 22, fixed to the side of the bucket and having arms 23 projecting upon each side of the bail.

Having thus described my invention, the following is what I. claim as new therein and desire to secure by Letters Patent:

1. In combination with a base-frame, paired bell-crank leversjournaled thereon, a treadle for operating said levers, and a link engaging with a stud on said treadle to limit its movement, substantially as set forth.

2. In a m0p-wringer, in combination with a base-frame, paired bell-crankleversjournaled thereon,oarrying thewringenrollers, and having the forked horizontal arms, and a treadle also journaled on the base-frame and having a lug engaging in the forks of said arms, substantially as and for the purpose set forth.

3. In combination with the rolls of a mop- 15 the rolls are brought together, substantially 20 as set forth.

ARTHUR M. BURNHAM.

Witnesses:

CHAS. LETTS, F. H. BROWNING. 

